The transformer is one of the most bulky, expensive and lowest efficiency components in a typical electric vehicle charging system. Its removal is conducive to enabling greater proliferation of charging infrastructure and the adoption of electrified vehicles. However, simply removing it can lead to common mode voltage and leakage current issues that present a safety hazard. To address this and to be compliant with international standards, a transformerless electric vehicle charging system enabled by control is proposed without need for additional components. This is achieved by connecting the three-phase filter capacitor neutral point to the DC negative, which allows the zero sequence voltage to be controlled, thereby mitigating leakage currents. Simulations show that the leakage current of the proposed transformerless charger can be made standard compliant with the topology while experiments provide validation through zero sequence voltage and active and reactive power steps. The results demonstrate that the transformer can be removed from electric vehicle chargers.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Zero Sequence Voltage Control Enabling Transformerless Electric Vehicle Chargers


    Beteiligte:
    Eull, Michael (Autor:in) / Wang, Weizhong (Autor:in) / Zhou, Liwei (Autor:in) / Preindl, Matthias (Autor:in)


    Erscheinungsdatum :

    21.06.2021


    Format / Umfang :

    800264 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Smart Moving Electric Vehicle Chargers

    CHO TAE SEOK / LEE GEUN TAEK | Europäisches Patentamt | 2024

    Freier Zugriff

    Modeling of electric vehicle chargers

    Chan, M.S.W. / Chau, K.T. / Chan, C.C. | Tema Archiv | 1998


    ELECTRIC VEHICLE CHARGER AND NETWORK OF ELECTRIC VEHICLE CHARGERS

    PENCZEK JAN / ĆWILĄG IRENEUSZ | Europäisches Patentamt | 2023

    Freier Zugriff

    Harmonic-study of electric vehicle chargers

    Lu, Yanxia / Jiang, Jiuchun | Tema Archiv | 2005


    SMART POWER SUPPLY FOR ELECTRIC VEHICLE CHARGERS

    MOON SUNG UB | Europäisches Patentamt | 2024

    Freier Zugriff